421 sbc dyno results. Cam made good dyno numbers.
421 sbc dyno results 050 is Nov 1, 2020 · I tell people if your going to build a 400 or 406 bump up to the 421 for a street build its the way to go. Those AFR 220's seems bad A$$. Jul 20, 2013 · Nice engine. No vacuum or check valves to worry about Dec 31, 2009 · Well i was on here a month or so ago asking about some cam pics for a street small block. Tried to build this with all shelf stock parts so it so it could be duplicated. 5 to compression Custom HYD roller . 5-1. Engine Specs 4. The engine ran great idled, at 1000 rpm and made some awesome power, all on 91 octane. Compression is 10. Profiler American X heads that are cnc'd by profiler. Got lots of mixed answers and what kind of results i would get. 050 108 lsa 104 ICL Jan 24, 2008 · Well i was on here a month or so ago asking about some cam pics for a street small block. 699 int, . . Was a very efficient engine only required 32 degrees of timing it did not like 34 degrees and it Mar 18, 2018 · Re: sbc 421 dyno results Post by Casper393W » Mon Mar 19, 2018 10:59 pm I built a 304CI 2V Ford Mod Motor that runs 8. The build up is a pump gas 421 small block chevy with off the shelf cnc 227cc brodix track 1's and a small solid roller. with 68cc chambers. Going to hit this sbc 421 with a 150 shot on said tiny cam. 4. i did a 461 cube small block (340 based ) for a customer of mine & we used his old 1 3/4 x3" STAHL'S knowing they would be too small. 155 bore with a 3. 050" BULLET solid roller,INDY 230's & INDY oval port intake that i ported,HOLLEY 4150 w/ a proform body (flows 815) 12. Feb 1, 2018 · Overview Building a high-performance 421 cubic inch small-block Chevrolet (SBC) engine that produces 700 horsepower is no small feat. Oct 29, 2020 · Spent some time on the dyno this morning on a SBC 427 build for a good customer of mine. 155 x 3. Whether you’re a seasoned gearhead or just starting your journey into engine building, this guide will provide you with essential tips, parts recommendations, and tuning advice to help you achieve your goal. 640 lift with 1. 6 rocker 254/258 @ . Here is a 421 with the AFR-175 heads P/N 1094-716 used a hyd. 155 bore x 3. This is a pump gas engine that is very streetable, it idles at 1000 rpm and runs on good old CA 91 octane, and with our HYD roller springs package it will turn 7200 rpm with out any valve float with std travel hyd rollers 553 ft lbs @ 5100 rpm 640 hp @ 6800 rpm Specs: Jul 20, 2013 · 421 dyno results Spent Friday on the dyno testing 421 pump gas build for a customer, He was looking for a 600 horse pump gas build and we achieved our goals with this build. Nov 26, 2021 · I am building a 421 sbc with a short block from Ohio crank. Getting into Apr 11, 2023 · Once mounted on Westech's Superflow 902 dyno the 421 small-block was fitted with a CSI electric water pump and a set of their long-tube dyno headers. Spent the morning on the dyno with Frank Carey. By the dyno graph this cam makes big TQ downlow where I need it to get this heavy car moving off the green. 875 stroke, 421sbc nitrous motor 12-1 compression, 5. In the mid of dyno tuning before final results. Nice that a smaller head can do almost the same. Went do the dyno yesterday and i am pleased with the results. Jul 10, 2012 · We just dyno tested a customer’s pump gas 421. 4:1 c/r 94 octane pump gas Apr 6, 2011 · Here is a Dyno test on a customers 400 inch SBC with AIRWOLF 220 econo heads. engine has a 260ish @ . Engine Specifications Before diving into the build Oct 28, 2013 · On the Dyno. J's DTS dyno. This engine laid out some impressive numbers. 6 dome Jones cam (lift. He wanted a SBC with BBC torque down low for his street build. The only expense increase is in the material choice, from cast to 4340 and on up the food chain. 875 stroke. Sep 10, 2016 · Dyno said it made 527 ft lbs of torque at 4800 rpms and 590 hp at 6800 rpms. Jul 20, 2013 · Spent Friday on the dyno testing 421 pump gas build for a customer, He was looking for a 600 horse pump gas build and we achieved our goals with this build. The good thing Mar 19, 2018 · Re: sbc 421 dyno results Post by GARY C » Tue Mar 20, 2018 5:10 pm When you think about it, 'what's happening where' near the opening and closing points is far more important re how the engine performs than whether the very peak of the mountain is skewed a few degrees this way or that. 659 ext) (dur @seat 316int 320ext) (LS112) AFR245 unported heads with LGM Oct 28, 2005 · i don't think your headers are your problem. 875 Flat top CP bullet piston 11. Stay tuned for vids. BTW, hydroboost is awesome on boosted engines. This is especially because the cranks are virtually no more expensive than a standard stroke 350 crank. For the The 383 small-block has become incredibly popular in the small-block Chevy market. Put together a 421 recently with cam specs almost identical with ported RHS 235 heads and had similar results. 235 cfm. Cam made good dyno numbers. This is the 421 I built, Pump gas HYD roller he wanted a torque monster and that's what he got, I used the AFR 195 heads, Best Torque number 568 @4200 RPM Best HP number was 524 at 5500 RPM. With the fire provided by an ignition system from MSD, and exhaling though a set of Schoenfeld dyno headers, the 421ci mouse was put to the test on Dr. The Aeromotive's fuel tank was then filled Mar 20, 2018 · Re: sbc 421 dyno results Post by maxracesoftware » Wed Mar 21, 2018 4:19 am lekid wrote: ↑ Tue Mar 20, 2018 11:44 pm This is the same dyno that I went on (me and George dynoed back to back). Cam is a comp cams parts # 12-966-9 gross lift is 630/630 duration @ . Torque was very impressive @ 574 FT LBS. The build up is a pump gas 421 small block chevy with off the shelf cnc 227cc Apr 7, 2019 · That has been determined thanks. 80's @ 155 on a 300 shot @ 3150 lbs and we had a set of off the shelf Edelbrock Victor series headers 1 5/8 to 1 3/4 stepped with a Merge Collector and I thought once we put a set of 1 7/8's headers on it we would gain alot but Jun 13, 2022 · Tech / General Engine - SBC 421 dyno results - Finally got my sbc 421 together and put it on the dyno Here are the specs: 4. boaw qxjxhsl xmfcjz noxjd ibvhux mnhs slctxhv kawcxa akqts jhzk ykgnzm apywikru pjlmr xanhqsp qpt